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村镇建筑土坯结构在一定地域仍有较多应用,为提高土坯结构的抗震能力、减小地震反应,提出了再生砖-土坯组合砌体结构,还提出了一种玻璃珠-石墨基础滑移隔震系统。进行了足尺再生砖-土坯组合砌体结构的振动台试验,采用了玻璃珠-石墨基础滑移隔震系统,研究了结构动力特性与损伤演化过程,分析了影响结构地震反应的主要因素,阐明了隔震系统减小结构地震反应的作用。研究表明:基础滑移隔震再生砖-土坯组合砌体结构具有良好的工作性能;小震下,玻璃珠-石墨基础滑移隔震系统不启动,结构地震反应与抗震结构类似;中震下,玻璃珠-石墨基础滑移隔震系统启动,减轻了上部结构的地震作用;大震下,基础滑移隔震系统工作良好,有效地减缓了上部结构的损伤破坏;再生砖-土坯组合砌体结构可用于村镇砌体结构的抗震设计。
In order to improve the seismic capacity of the adobe structure and reduce the seismic response, a new brick-adobe masonry structure is proposed, and a glass bead-graphite slip-slip Earthquake system. The shaking table test of full - scale brick - adobe composite masonry structure was carried out. The glass bead - graphite base sliding isolation system was adopted. The dynamic characteristics and damage evolution of the structure were studied. The main factors affecting the seismic response of the structure were analyzed. The effect of isolation system on reducing structural seismic response is illustrated. The results show that the foundation slippery isolated brick-adobe composite masonry structure has a good working performance. Under the small earthquake, the glass bead-graphite slippery base isolation system does not start, the seismic response of the structure is similar to the seismic structure. , The glass bead-graphite base sliding isolation system is activated to reduce the earthquake effect of the superstructure. Under large earthquakes, the foundation slip isolation system works well, effectively damaging the damage and damage to the superstructure; and the recycled brick-adobe composite construction The body structure can be used for the seismic design of masonry structures in villages and towns.